Komoigu



(No Model.)

,146. Patented Jan. 23, 1883.

'/ IIII/llIII/IDIII(III)III/IIIIIIIIIIIIIIIIII;

' INVENTOR WITNESSES ATTORNEYS.

N. PETERS. Phnlo-Lr tmgnpher, Waahlngtnn. D. c.

, UNITED STATES PATENT OFFICE.

SARAH B. STEARNS, OF DULUTH, MINNESOTA, ASSIGNOR TO HERS ELF AND MARYBRANDENBURG, OF TREMPEALEAU, WIS.

VENTILATING SCREEN FOR vWINDOWS.

SPECIFICATION forming part of Letters Patent No. 271,146, dated January23, 1883, Application filed August 17, 1882. (No model.)

To all whom it may concern Be it known that I, SARAH B. S'JEARNS, ofDuluth, in the county of St. Louis and State of Minnesota, have inventedcertain new and useful Improvements in Ventilating-Screens for Windows,of which the following is a full, clear, and exact description.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of referen'ceindicatecorresponding parts in both the figures.

Figure 1 isa perspective view of my improve ment. Fig. 2 is a sectionalside elevation of the same.

The object of this invention is to secure a thorough ventilation ofschool-rooms and other rooms without exposing the occupants of the roomsto currents of air.

The invention consists in a ventilating-screen for windows constructedwith aframe provided with eyes at its corners and at the middle parts ofits outer and end bars, and hinged to a window-casing by screws passingthrough the eyes at its inner corners. The frame is covered with clothhaving upright triangular ends, and provided with eyelets along itsouter edge and its inclined end edges, to receive cords attached to thescreen-frame and passing through the eyes of the eye-screws attached tothe window-casing, so that the screen can be readily adjusted.

The ventilating-screen is provided with a gauze-covered frame hinged tothe windowcasing by the same screws that hinge the saidventilating-screen to the said casing, so that the said screen can beturned up to exclude mosquitoes and flies, while air is freely admittedand distributed through the upper part of a room, as will be hereinafterfully described.

A represents a window-casin g, B the upper sash, and O the lower sash.

D is a three-sided frame, made of a metal rod or other suitablematerial, and of such a length as to fit into the space between thesides of the casing A, where it is secured in place and hinged to thecasing by screws E passing through eyes or holes F in the inner cornersof the frame D, and screwed into the said casing or into a metal supportattached to the casing at such a. distance from its top that when theframe D is swung upward its outer bar will reach to the top of thecasing.

If desired, the frameD can be hinged to the inner side of the top bar ofthe upper sash, B, by eye or hook screws or other suitable means, sothat the screen can be raised by and with the said upper sash to allowthe lower sash to be fully raised, the said hinging bearings being soformed as to hold the cross-bar Q.

In theouter corners of the frame D, in the center of the outer bar ofthe said frame, and in the centers of its end bars, are formed eyes orholes, marked respectively G H I, to receive theadjusting-cords J K.

The screen-cover L is made of cloth, with inclined ends, and of a lengthat the outer edge equal to the length of the frame D, andat its upperedge equal to the length of theframe plus twice its width, so that whenthe frame D is in a horizontal position and the ends of the cover L areturned up vertically the said ends will have the form of right-angledisosceles triangles. The cover L is secured to the eyes F G H of theframe D, and the upper corners of its ends are secured to thehook-screws M, attached to the casing near the eyescrews Vi, screwedinto the casingA, to receive and serve as guides to the cords J K.

Thelower edge ofthe cover L is kept straight, and is held against thewindow-sash, so as to prevent air from entering the room between thesaid cover and sash, by a light bar, Q, of wood or other suitablematerial, inserted in a hem in the edge of the cover, with its ends insockets in the metal supports R, to which the inner corners of the frameD are hinged.

The cord J is attached at its center to the eye H, passes through theeyes G, through eyelets N in the outer and end edges of the cover L, andthrough the eyes of the eye-screws M. The cord K is secured at itscenter to the eye H, and passes through the eyes I and the eyes of theeye-screws M. From the eyes of the eyescrews M the cords J K pass downalong the side casings, A, into such a position that they can beconveniently reached and operated to V adjust the screen 1) L, and wherethey are secured to eyescrews, belaying-cleats, or other suitablefastenings. With this construction, when the screen I) L is in ahorizontal position and the upper sash, B, is lowered till its top baris at the inner edge of the said screen D L, the air entering the roomwill be made to pass into and be spread through the upper part ICC ofthe said room, so as to be warmed slightly as it gradually settles intothe lower part of the room, so that the occupants of the room will notbe exposed to the direct action of currents of cold air. 1

Should the direction of the wind be such as to force-too strong acurrent of air into the room, the screen D L can be adjusted at agreater or less angle with the window, so as to direct the current ofair against the ceiling, along which it will spread before settling intothe lower part of the room.

With this improvement a thorough ventilation of a room can be had at alltimes without exposing the occupants of the room to currents of coldair.

O is a frame covered with gauze or mosquitonetting P, so as to excludemosquitoes and flies, while allowing air to pass through freely. Thescreen 0 P is hinged at its inner corners to the casing Aby the screwsE, that hinge the screen DL to the said casing. When the screen 0 P isnot required for use it is turned down upon the screen D L, so as to beentirely out of the way, and to be raised and lowered by and with thescreen D L as the said screen is raised and lowered. When the screen 0 Pis required for use it is turned upinto the upper part of the casing A,as shown in Fig. 1, and allowed-to remain there, being unaffected by themovements of the screen D L.

Patent- 1. A ventilating-screen for windows, constructed substantiallyas herein shown and described, and consisting of the frame D, havingeyes F Gr H I, thecover L, attached to the said frame, and the cords J Kfor adjusting the screen, as set forth.

2. In a ventilatingscreen for windows, the combination, with the casingA, of the frame D, having eyes F G H I, the hinging-screws E, the coverL, having eyelets N, the cords J K, and the eye-screws M, substantiallyas herein shown and described, whereby the entering current of air isguided into and distributed through the upperpartot'the room, as setforth.

3. In a ventilating-screen for windows, the combination, with the casingA, the screen D L J K, and the hinging-screws E, of the gauzecoveredframe 0 P, substantially as herein shown and described, wherebymosquitoes and flies can be excluded, while admitting the air andguiding it into the upper part of the room, as set forth.

SARAH B. STE ARNS.

Witnesses:

JAMES THGRAHAM, U. SEDGWICK.

